Rename Q_PROCESSOR_POWERPC to Q_PROCESSOR_POWER

IBM's POWER and the PowerPC architecture have been merged into a single
ISA, the Power ISA (see http://www.power.org). Use this unified name in
Qt.

Change-Id: Ia41492b0031d890843e43c5f7ecd1e60c65bb75b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 516 insertions, 0 deletions

diff --git a/src/corelib/arch/qatomic_power.h b/src/corelib/arch/qatomic_power.h
new file mode 100644
index 0000000000..a531dfedc8
--- /dev/null
+++ b/src/corelib/arch/qatomic_power.h
@@ -0,0 +1,516 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QATOMIC_POWER_H
+#define QATOMIC_POWER_H
+
+#include <QtCore/qoldbasicatomic.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+#define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_ALWAYS_NATIVE
+
+inline bool QBasicAtomicInt::isReferenceCountingNative()
+{ return true; }
+inline bool QBasicAtomicInt::isReferenceCountingWaitFree()
+{ return false; }
+
+#define Q_ATOMIC_INT_TEST_AND_SET_IS_ALWAYS_NATIVE
+
+inline bool QBasicAtomicInt::isTestAndSetNative()
+{ return true; }
+inline bool QBasicAtomicInt::isTestAndSetWaitFree()
+{ return false; }
+
+#define Q_ATOMIC_INT_FETCH_AND_STORE_IS_ALWAYS_NATIVE
+
+inline bool QBasicAtomicInt::isFetchAndStoreNative()
+{ return true; }
+inline bool QBasicAtomicInt::isFetchAndStoreWaitFree()
+{ return false; }
+
+#define Q_ATOMIC_INT_FETCH_AND_ADD_IS_ALWAYS_NATIVE
+
+inline bool QBasicAtomicInt::isFetchAndAddNative()
+{ return true; }
+inline bool QBasicAtomicInt::isFetchAndAddWaitFree()
+{ return false; }
+
+#define Q_ATOMIC_POINTER_TEST_AND_SET_IS_ALWAYS_NATIVE
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetNative()
+{ return true; }
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetWaitFree()
+{ return false; }
+
+#define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_ALWAYS_NATIVE
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreNative()
+{ return true; }
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreWaitFree()
+{ return false; }
+
+#define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_ALWAYS_NATIVE
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddNative()
+{ return true; }
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddWaitFree()
+{ return false; }
+
+#if defined(Q_CC_GNU)
+
+#ifdef Q_PROCESSOR_POWER_32
+#  define _Q_VALUE "0, %[_q_value]"
+#  define _Q_VALUE_MEMORY_OPERAND "+m" (_q_value)
+#  define _Q_VALUE_REGISTER_OPERAND [_q_value] "r" (&_q_value),
+#else // Q_PROCESSOR_POWER_64
+#  define _Q_VALUE "%y[_q_value]"
+#  define _Q_VALUE_MEMORY_OPERAND [_q_value] "+Z" (_q_value)
+#  define _Q_VALUE_REGISTER_OPERAND
+#endif
+
+inline bool QBasicAtomicInt::ref()
+{
+    register int originalValue;
+    register int newValue;
+    asm volatile("lwarx  %[originalValue]," _Q_VALUE "\n"
+                 "addi   %[newValue], %[originalValue], %[one]\n"
+                 "stwcx. %[newValue]," _Q_VALUE "\n"
+                 "bne-   $-12\n"
+                 : [originalValue] "=&b" (originalValue),
+                   [newValue] "=&r" (newValue),
+                   _Q_VALUE_MEMORY_OPERAND
+                 : _Q_VALUE_REGISTER_OPERAND
+                   [one] "i" (1)
+                 : "cc", "memory");
+    return newValue != 0;
+}
+
+inline bool QBasicAtomicInt::deref()
+{
+    register int originalValue;
+    register int newValue;
+    asm volatile("lwarx  %[originalValue]," _Q_VALUE "\n"
+                 "addi   %[newValue], %[originalValue], %[minusOne]\n"
+                 "stwcx. %[newValue]," _Q_VALUE "\n"
+                 "bne-   $-12\n"
+                 : [originalValue] "=&b" (originalValue),
+                   [newValue] "=&r" (newValue),
+                   _Q_VALUE_MEMORY_OPERAND
+                 : _Q_VALUE_REGISTER_OPERAND
+                   [minusOne] "i" (-1)
+                 : "cc", "memory");
+    return newValue != 0;
+}
+
+inline bool QBasicAtomicInt::testAndSetRelaxed(int expectedValue, int newValue)
+{
+    register int result;
+    asm volatile("lwarx  %[result]," _Q_VALUE "\n"
+                 "xor.   %[result], %[result], %[expectedValue]\n"
+                 "bne    $+12\n"
+                 "stwcx. %[newValue]," _Q_VALUE "\n"
+                 "bne-   $-16\n"
+                 : [result] "=&r" (result),
+                   _Q_VALUE_MEMORY_OPERAND
+                 : _Q_VALUE_REGISTER_OPERAND
+                   [expectedValue] "r" (expectedValue),
+                   [newValue] "r" (newValue)
+                 : "cc", "memory");
+    return result == 0;
+}
+
+inline bool QBasicAtomicInt::testAndSetAcquire(int expectedValue, int newValue)
+{
+    register int result;
+    asm volatile("lwarx  %[result]," _Q_VALUE "\n"
+                 "xor.   %[result], %[result], %[expectedValue]\n"
+                 "bne    $+16\n"
+                 "stwcx. %[newValue]," _Q_VALUE "\n"
+                 "bne-   $-16\n"
+                 "isync\n"
+                 : [result] "=&r" (result),
+                   _Q_VALUE_MEMORY_OPERAND
+                 : _Q_VALUE_REGISTER_OPERAND
+                   [expectedValue] "r" (expectedValue),
+                   [newValue] "r" (newValue)
+                 : "cc", "memory");
+    return result == 0;
+}
+
+inline bool QBasicAtomicInt::testAndSetRelease(int expectedValue, int newValue)
+{
+    register int result;
+    asm volatile("eieio\n"
+                 "lwarx  %[result]," _Q_VALUE "\n"
+                 "xor.   %[result], %[result], %[expectedValue]\n"
+                 "bne    $+12\n"
+                 "stwcx. %[newValue]," _Q_VALUE "\n"
+                 "bne-   $-16\n"
+                 : [result] "=&r" (result),
+                   _Q_VALUE_MEMORY_OPERAND
+                 : _Q_VALUE_REGISTER_OPERAND
+                   [expectedValue] "r" (expectedValue),
+                   [newValue] "r" (newValue)
+                 : "cc", "memory");
+    return result == 0;
+}
+
+inline int QBasicAtomicInt::fetchAndStoreRelaxed(int newValue)
+{
+    register int originalValue;
+    asm volatile("lwarx  %[originalValue]," _Q_VALUE "\n"
+                 "stwcx. %[newValue]," _Q_VALUE "\n"
+                 "bne-   $-8\n"
+                 : [originalValue] "=&r" (originalValue),
+                   _Q_VALUE_MEMORY_OPERAND
+                 : _Q_VALUE_REGISTER_OPERAND
+                   [newValue] "r" (newValue)
+                 : "cc", "memory");
+    return originalValue;
+}
+
+inline int QBasicAtomicInt::fetchAndStoreAcquire(int newValue)
+{
+    register int originalValue;
+    asm volatile("lwarx  %[originalValue]," _Q_VALUE "\n"
+                 "stwcx. %[newValue]," _Q_VALUE "\n"
+                 "bne-   $-8\n"
+                 "isync\n"
+                 : [originalValue] "=&r" (originalValue),
+                   _Q_VALUE_MEMORY_OPERAND
+                 : _Q_VALUE_REGISTER_OPERAND
+                   [newValue] "r" (newValue)
+                 : "cc", "memory");
+    return originalValue;
+}
+
+inline int QBasicAtomicInt::fetchAndStoreRelease(int newValue)
+{
+    register int originalValue;
+    asm volatile("eieio\n"
+                 "lwarx  %[originalValue]," _Q_VALUE "\n"
+                 "stwcx. %[newValue]," _Q_VALUE "\n"
+                 "bne-   $-8\n"
+                 : [originalValue] "=&r" (originalValue),
+                   _Q_VALUE_MEMORY_OPERAND
+                 : _Q_VALUE_REGISTER_OPERAND
+                   [newValue] "r" (newValue)
+                 : "cc", "memory");
+    return originalValue;
+}
+
+inline int QBasicAtomicInt::fetchAndAddRelaxed(int valueToAdd)
+{
+    register int originalValue;
+    register int newValue;
+    asm volatile("lwarx  %[originalValue]," _Q_VALUE "\n"
+                 "add    %[newValue], %[originalValue], %[valueToAdd]\n"
+                 "stwcx. %[newValue]," _Q_VALUE "\n"
+                 "bne-   $-12\n"
+                 : [originalValue] "=&r" (originalValue),
+                   [newValue] "=&r" (newValue),
+                   _Q_VALUE_MEMORY_OPERAND
+                 : _Q_VALUE_REGISTER_OPERAND
+                   [valueToAdd] "r" (valueToAdd)
+                 : "cc", "memory");
+    return originalValue;
+}
+
+inline int QBasicAtomicInt::fetchAndAddAcquire(int valueToAdd)
+{
+    register int originalValue;
+    register int newValue;
+    asm volatile("lwarx  %[originalValue]," _Q_VALUE "\n"
+                 "add    %[newValue], %[originalValue], %[valueToAdd]\n"
+                 "stwcx. %[newValue]," _Q_VALUE "\n"
+                 "bne-   $-12\n"
+                 "isync\n"
+                 : [originalValue] "=&r" (originalValue),
+                   [newValue] "=&r" (newValue),
+                   _Q_VALUE_MEMORY_OPERAND
+                 : _Q_VALUE_REGISTER_OPERAND
+                   [valueToAdd] "r" (valueToAdd)
+                 : "cc", "memory");
+    return originalValue;
+}
+
+inline int QBasicAtomicInt::fetchAndAddRelease(int valueToAdd)
+{
+    register int originalValue;
+    register int newValue;
+    asm volatile("eieio\n"
+                 "lwarx  %[originalValue]," _Q_VALUE "\n"
+                 "add    %[newValue], %[originalValue], %[valueToAdd]\n"
+                 "stwcx. %[newValue]," _Q_VALUE "\n"
+                 "bne-   $-12\n"
+                 : [originalValue] "=&r" (originalValue),
+                   [newValue] "=&r" (newValue),
+                   _Q_VALUE_MEMORY_OPERAND
+                 : _Q_VALUE_REGISTER_OPERAND
+                   [valueToAdd] "r" (valueToAdd)
+                 : "cc", "memory");
+    return originalValue;
+}
+
+#ifdef Q_PROCESSOR_POWER_64
+#  define LPARX "ldarx"
+#  define STPCX "stdcx."
+#else
+#  define LPARX "lwarx"
+#  define STPCX "stwcx."
+#endif
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelaxed(T *expectedValue, T *newValue)
+{
+    register void *result;
+    asm volatile(LPARX"  %[result]," _Q_VALUE "\n"
+                 "xor.   %[result], %[result], %[expectedValue]\n"
+                 "bne    $+12\n"
+                 STPCX"  %[newValue]," _Q_VALUE "\n"
+                 "bne-   $-16\n"
+                 : [result] "=&r" (result),
+                   _Q_VALUE_MEMORY_OPERAND
+                 : _Q_VALUE_REGISTER_OPERAND
+                   [expectedValue] "r" (expectedValue),
+                   [newValue] "r" (newValue)
+                 : "cc", "memory");
+    return result == 0;
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetAcquire(T *expectedValue, T *newValue)
+{
+    register void *result;
+    asm volatile(LPARX"  %[result]," _Q_VALUE "\n"
+                 "xor.   %[result], %[result], %[expectedValue]\n"
+                 "bne    $+16\n"
+                 STPCX"  %[newValue]," _Q_VALUE "\n"
+                 "bne-   $-16\n"
+                 "isync\n"
+                 : [result] "=&r" (result),
+                   _Q_VALUE_MEMORY_OPERAND
+                 : _Q_VALUE_REGISTER_OPERAND
+                   [expectedValue] "r" (expectedValue),
+                   [newValue] "r" (newValue)
+                 : "cc", "memory");
+    return result == 0;
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelease(T *expectedValue, T *newValue)
+{
+    register void *result;
+    asm volatile("eieio\n"
+                 LPARX"  %[result]," _Q_VALUE "\n"
+                 "xor.   %[result], %[result], %[expectedValue]\n"
+                 "bne    $+12\n"
+                 STPCX"  %[newValue]," _Q_VALUE "\n"
+                 "bne-   $-16\n"
+                 : [result] "=&r" (result),
+                   _Q_VALUE_MEMORY_OPERAND
+                 : _Q_VALUE_REGISTER_OPERAND
+                   [expectedValue] "r" (expectedValue),
+                   [newValue] "r" (newValue)
+                 : "cc", "memory");
+    return result == 0;
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelaxed(T *newValue)
+{
+    register T *originalValue;
+    asm volatile(LPARX"  %[originalValue]," _Q_VALUE "\n"
+                 STPCX"  %[newValue]," _Q_VALUE "\n"
+                 "bne-   $-8\n"
+                 : [originalValue] "=&r" (originalValue),
+                   _Q_VALUE_MEMORY_OPERAND
+                 : _Q_VALUE_REGISTER_OPERAND
+                   [newValue] "r" (newValue)
+                 : "cc", "memory");
+    return originalValue;
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreAcquire(T *newValue)
+{
+    register T *originalValue;
+    asm volatile(LPARX"  %[originalValue]," _Q_VALUE "\n"
+                 STPCX"  %[newValue]," _Q_VALUE "\n"
+                 "bne-   $-8\n"
+                 "isync\n"
+                 : [originalValue] "=&r" (originalValue),
+                   _Q_VALUE_MEMORY_OPERAND
+                 : _Q_VALUE_REGISTER_OPERAND
+                   [newValue] "r" (newValue)
+                 : "cc", "memory");
+    return originalValue;
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelease(T *newValue)
+{
+    register T *originalValue;
+    asm volatile("eieio\n"
+                 LPARX"  %[originalValue]," _Q_VALUE "\n"
+                 STPCX"  %[newValue]," _Q_VALUE "\n"
+                 "bne-   $-8\n"
+                 : [originalValue] "=&r" (originalValue),
+                   _Q_VALUE_MEMORY_OPERAND
+                 : _Q_VALUE_REGISTER_OPERAND
+                   [newValue] "r" (newValue)
+                 : "cc", "memory");
+    return originalValue;
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelaxed(qptrdiff valueToAdd)
+{
+    register T *originalValue;
+    register T *newValue;
+    asm volatile(LPARX"  %[originalValue]," _Q_VALUE "\n"
+                 "add    %[newValue], %[originalValue], %[valueToAdd]\n"
+                 STPCX"  %[newValue]," _Q_VALUE "\n"
+                 "bne-   $-12\n"
+                 : [originalValue] "=&r" (originalValue),
+                   [newValue] "=&r" (newValue),
+                   _Q_VALUE_MEMORY_OPERAND
+                 : _Q_VALUE_REGISTER_OPERAND
+                   [valueToAdd] "r" (valueToAdd * sizeof(T))
+                 : "cc", "memory");
+    return originalValue;
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddAcquire(qptrdiff valueToAdd)
+{
+    register T *originalValue;
+    register T *newValue;
+    asm volatile(LPARX"  %[originalValue]," _Q_VALUE "\n"
+                 "add    %[newValue], %[originalValue], %[valueToAdd]\n"
+                 STPCX"  %[newValue]," _Q_VALUE "\n"
+                 "bne-   $-12\n"
+                 "isync\n"
+                 : [originalValue] "=&r" (originalValue),
+                   [newValue] "=&r" (newValue),
+                   _Q_VALUE_MEMORY_OPERAND
+                 : _Q_VALUE_REGISTER_OPERAND
+                   [valueToAdd] "r" (valueToAdd * sizeof(T))
+                 : "cc", "memory");
+    return originalValue;
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelease(qptrdiff valueToAdd)
+{
+    register T *originalValue;
+    register T *newValue;
+    asm volatile("eieio\n"
+                 LPARX"  %[originalValue]," _Q_VALUE "\n"
+                 "add    %[newValue], %[originalValue], %[valueToAdd]\n"
+                 STPCX"  %[newValue]," _Q_VALUE "\n"
+                 "bne-   $-12\n"
+                 : [originalValue] "=&r" (originalValue),
+                   [newValue] "=&r" (newValue),
+                   _Q_VALUE_MEMORY_OPERAND
+                 : _Q_VALUE_REGISTER_OPERAND
+                   [valueToAdd] "r" (valueToAdd * sizeof(T))
+                 : "cc", "memory");
+    return originalValue;
+}
+
+#undef LPARX
+#undef STPCX
+#undef _Q_VALUE
+#undef _Q_VALUE_MEMORY_OPERAND
+#undef _Q_VALUE_REGISTER_OPERAND
+
+#else
+#  error "This compiler for Power/PowerPC is not supported"
+#endif
+
+inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue)
+{
+    return testAndSetAcquire(expectedValue, newValue);
+}
+
+inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue)
+{
+    return fetchAndStoreAcquire(newValue);
+}
+
+inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd)
+{
+    return fetchAndAddAcquire(valueToAdd);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue)
+{
+    return testAndSetAcquire(expectedValue, newValue);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue)
+{
+    return fetchAndStoreAcquire(newValue);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd)
+{
+    return fetchAndAddAcquire(valueToAdd);
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QATOMIC_POWER_H